When the user presses the sleep button on the computer or remote control, the computer goes into a lower power state called Away mode, instead of going into Standby mode. When the computer is in Away mode, the Away mode technology: 1  Turns off the video port for the main display (the monitor appears blank).
Atrial fibrillation (AF) is the most common arrhythmia, affecting more than 4% of the population over the age of 60. 1,2 AF can be divided into permanent and paroxysmal atrial fibrillation (PAF). PAF is defined as at least two separate episodes of AF that terminate spontaneously in less than 7 days, usually within 24 hours. 3 These episodes of AF last greater than 30 seconds and are not related to a reversible cause.
Atrial Fibrillation. Atrial fibrillation (AF) is characterized by rapid and irregular activation of the atrium. It may be recurrent (paroxysmal) or permanent (chronic). During AF, atrial cells fire at rates of 400-600 times per minute. The filtering function of the atrioventricular node prevents the conduction to the ventricles and therefore results in ineffective cardiac contraction.